LG OLED55CS A Series - Page 43

Standard Repair Process Detail Technical Manual
TUNER checking part
A5
A5
Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
Error symptom
A. Video error_Video error, video lag/stop
Established
date
Revised
date
Content
Copyright © 2022 LG Electronics. Inc. All rights reserved.
Only for training and service purposes.